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How can I restore factory settings on my tv?

Lost picture and sound while in Menu mode. I tried unplugging tv for 30 minutes. That did not help,

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To set it to its factory settings, you have to enter its service mode option. If you are somewhat sound in electronics, you can enter this mode, and set it into factory settings. By the way, what is the brand name of your TV? Model number? Provide more details please. If you wish to get more, check the site linked here. It has details about service mode entry and adjust methods to many brand TVs. http://electronicshelponline.blogspot.com/ Pull up previous posts there, either by type in the Brand name to your set in its search box, or view it in Mosaic / Timeslide / Flipcard option.

Posted on Jul 26, 2013

6 Suggested Answers

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Posted on Jan 02, 2017

  • 236 Answers

SOURCE: tv has sound but no picture

Sounds like you have lost video somewhere in the video circuits. Possibly the picture tube could have gone bad or lost filiament voltage. You can check to see if you have high voltage by holding your bare arm close to the screen. The hairs will stand up if you have high voltage. Absence of high voltage will also cause a black screen,but the sound might not work either since on some sets the power for the sound is supplied from the same circuit as the high voltage. Stargazer

Posted on Jan 28, 2007

chrispurs1
  • 372 Answers

SOURCE: Bush 22" LCD TV

Hi.

What is the TV model number ?

Posted on Nov 29, 2007

techman
  • 3130 Answers

SOURCE: Lost the Manual & can't tune digital channels, option not available on menu ?

Here is a link where you can down load a free copy of your customer user manual. Good Luck

http://esupport.sony.com/US/perl/model-documents.pl?mdl=KV32FS120&LOC=3

Posted on Feb 03, 2008

jerryg50
  • 1667 Answers

SOURCE: sony kv32ds60u engineers menu

If you did not save the damage that you did, or do any damage from over-adjustment, you can make a re-set to before the adjustments were made by simply unplugging the set from the AC mains for about 10 to 20 seconds. If the improper parameters were saved, or damage was done from over adjustment, then this procedure will not work for you.


Read on for more details:

There is no default actual default. Each set is individualy set up for its optimum performance. At the factory, during the manufacturing process they set the EPROM firmware parameters to a so-called reference value before they start the calibration. This is done during production on the burner that programs the EPROM.

If the paramters are too far off to have the set working, you will have to take the set for service at a factory service rep. The factory service shop will most likely have to change the complete circuit board that constains the uPC EPROM with a new one that has the reference factory set-up. They will then have to go through the complete set-up with calibration procedures using the factory recomended calibration standards instrumentation to match for best performance. To manualy do a full calibration on the test bench it can be about 2 hours of work.

Because the factory service setup was not meant for consumer use, it is possible to over adjust parameters to the point where you can lock the set out of operation, or actualy do damage by over-adjustment.

Jerry G.

Posted on Apr 19, 2008

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  • 6487 Answers

SOURCE: PRIMA HT2778P pin-cushioned blue screen - service menu reset needed

Try this one:


1. Unplug your power cord from the box (NOT THE
WALL!)
2. Wait 3-5 min... No more than 5 MIN (very important)
3. Hold down the power and select button at the same time and don’t let go.
4. Have someone plug the power back in… and keep holding the power and select button.
5. Don’t let go until it gets to 0 (it's about 5 min)
6. Once it gets to 0 then it will stop counting down, that when you let go!!
7. Don’t touch anything,
8. The screen will reset and it will go blank. nad that's it

Hope that helps....

Posted on Jul 10, 2008

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